mqtt_sensor.h

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#pragma once
 
#include "esphome/core/defines.h"
 
#ifdef USE_MQTT
#ifdef USE_SENSOR
 
#include "esphome/components/sensor/sensor.h"
#include "mqtt_component.h"
 
namespace esphome::mqtt {
 
class MQTTSensorComponent : public mqtt::MQTTComponent {
 public:
  explicit MQTTSensorComponent(sensor::Sensor *sensor);
 
  void set_expire_after(uint32_t expire_after);
  void disable_expire_after();
 
  void send_discovery(JsonObject root, mqtt::SendDiscoveryConfig &config) override;
 
  // ========== INTERNAL METHODS ==========
  // (In most use cases you won't need these)
  void setup() override;
 
  void dump_config() override;
 
  uint32_t get_expire_after() const;
 
  bool publish_state(float value);
  bool send_initial_state() override;
 
 protected:
  const char *component_type() const override;
  const EntityBase *get_entity() const override;
 
  sensor::Sensor *sensor_;
  optional<uint32_t> expire_after_;  // Override the expire after advertised to Home Assistant
};
 
}  // namespace esphome::mqtt
 
#endif
#endif  // USE_MQTT